Motul 5100 10W‑40 4T – Semi‑Synthetic Motorcycle Oil

Overview:
Motul 5100 10W‑40 4T is a robust semi‑synthetic (Technosynthese®) engine oil designed specifically for 4‑stroke motorcycles—street, off‑road, enduro, scooters, ATVs, UTVs, and watercraft. Its ester-reinforced formula delivers excellent wear protection under daily use and recreational riding.

Key Features:

• Technosynthese® + Ester blend ensures stable oil film and smooth shifting performance.

• Engine & Gearbox Protection: Meets JASO MA2 and API SP/SM standards—excellent for wet clutches and high‑load transmissions.

• Catalytic Safe: Low phosphorus/sulfur formula (<1200 ppm) protects catalytic converters .

• High‑Temp Resistance: Superb shear and thermal stability, passing the FZG 14 gearbox wear test.

• Versatile Use: Fits 4‑stroke engines (Euro 2‑5), with or without integrated gearbox, with wet or dry clutches.

• Drain Interval: Reliable performance throughout typical OEM drain intervals (sometimes up to 16,000 km).

Technical Specs (10W‑40):

• Density at 20°C: ~0.865

• Viscosity: ~87.6 mm²/s @ 40°C; ~13.8 mm²/s @ 100°C

• Viscosity Index: 161

• Pour Point: –33°C

• Flash Point: 226°C

• TBN: 7.5 mg KOH/g

Benefits:

• Smooth cold starts and reliable shifting

• Long-lasting engine and gearbox protection under hot and stressed conditions

• Good fuel economy and clutch feel

• Safe for catalytic converters and emission systems

Final Thoughts

Motul 5100 10W‑40 4T is a versatile semi‑synthetic oil that offers strong performance, engine and gearbox protection, clutch compatibility, and emission-system safety—without the price of full synthetics. A solid choice for daily riders, enthusiasts, and multi-bike households.